Ports to block?
Does anyone have a recommendation of ports that should be blocked (via
ipchains/netfilter/etc) to make a system more secure?
In light of the recent security holes, I did a netstat -an, then lsof -i for
all ports that were listening and/or UDP. I put a filter in the way of
everything that I didn't want externally visible, but UDP port 1028 shows
nothing listening lsof. I blocked it out of principle, but does anyone know
what it might be?
Brandon High email@example.com
We are Homer of Borg. Resistance is ... Ooo! Donuts!